/*
audio.h
Copyright (C) Christian Wolff for convergence integrated media.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef CVDV_AUDIO_H
#define CVDV_AUDIO_H
//
// Audio Decoder
//
#define __NO_VERSION__
#include <pcmcia/config.h>
#include <pcmcia/k_compat.h>
#include "cardbase.h"
#define MAUDIO_PAUSE 0
#define MAUDIO_PLAY 1
#define MAUDIO_FAST 2
#define MAUDIO_SLOW 3
// mode=0 pause
// mode=1 normal speed play
// mode=2 fast play, 16/15
// mode=3 slow play, 16/17
void AudioSetPlayMode(struct cvdv_cards *card, int mode);
void AudioStartDecode(struct cvdv_cards *card);
// Stop Decode flushes the Audio ES channel buffer
void AudioStopDecode(struct cvdv_cards *card);
void AudioStartFormat(struct cvdv_cards *card);
void AudioStopFormat(struct cvdv_cards *card);
// Audio source: S/PDIF out:
// mode 0: MPEG IEC958
// mode 1: AC3 IEC958
// mode 2: MPEG MPEG
// mode 3: AC3 AC3
// mode 4: PCM IEC958 (max. 48kHz)
// mode 5: PCM 96->48kHz IEC958 (48kHz)
// mode 6: CD Bypass S/PDIF Bypass
// mode 7: PCM FIFO PCM FIFO
void AudioSetMode(struct cvdv_cards *card, int mode);
// volume: 0..255
void AudioSetVolume(struct cvdv_cards *card, int volume);
// mute=1: mute audio
void AudioMute(struct cvdv_cards *card, int mute);
// mode=0: stereo
// mode=1: surround
void AudioAC3Mode(struct cvdv_cards *card, int mode);
// mode=0: custom analog
// mode=1: custom digital
// mode=2: line-out (default)
// mode=3: RF mode
void AudioAC3Compression(struct cvdv_cards *card, int mode);
// mode=0: AC3
// mode=1: ES1
void AudioAC3Formatter(struct cvdv_cards *card, int mode);
// mode=0: Stereo
// mode=1: Right channel only
// mode=2: Left channel only
// mode=3: Mono Mix
void AudioDualMono(struct cvdv_cards *card, int mode);
// swap=0: L->L, R->R
// swap=1: L->R, R->L
void AudioSwap(struct cvdv_cards *card, int swap);
// select=0: use clock from ACLK_441 pin -> ACLK=44.1kHz*N
// select=1: use clock from ACLK_48 pin -> ACLK=48.0kHz*N
// select=2: use clock from ACLK_32 pin -> ACLK=32.0kHz*N
// Since the programmable sample rate generator of the PCM1723 is connected to
// all 3 of them, it doen't matter wich one you choose.
// divider=0: ACLK=768*Fs / S/PDIF-BCLK=ACLK/6 / DAC-BCLK=ACLK/12 / DAC-A_ACLK=ACLK/3
// divider=1: ACLK=768*Fs / S/PDIF-BCLK=ACLK/6 / DAC-BCLK=ACLK/12 / DAC-A_ACLK=ACLK/2
// divider=2: ACLK=512*Fs / S/PDIF-BCLK=ACLK/4 / DAC-BCLK=ACLK/8 / DAC-A_ACLK=ACLK/2
// divider=3: ACLK=384*Fs / S/PDIF-BCLK=ACLK/3 / DAC-BCLK=ACLK/6 / DAC-A_ACLK=ACLK/1
// divider=4: ACLK=256*Fs / S/PDIF-BCLK=ACLK/2 / DAC-BCLK=ACLK/4 / DAC-A_ACLK=ACLK/1
// divider=5: ACLK=768*48kHz / S/PDIF-BCLK=ACLK/6 / DAC-BCLK=ACLK/6 / DAC-A_ACLK=ACLK/1
// divider=6: ACLK=512*48kHz / S/PDIF-BCLK=ACLK/4 / DAC-BCLK=ACLK/4 / DAC-A_ACLK=ACLK/1
// divider=C: ACLK=768*48kHz / S/PDIF-BCLK=ACLK/9 / DAC-BCLK=ACLK/18 / DAC-A_ACLK=ACLK/3
// divider=D: ACLK=512*48kHz / S/PDIF-BCLK=ACLK/6 / DAC-BCLK=ACLK/12 / DAC-A_ACLK=ACLK/3
// divider=E: ACLK=512*48kHz / S/PDIF-BCLK=ACLK/6 / DAC-BCLK=ACLK/12 / DAC-A_ACLK=ACLK/2
// divider=F: ACLK=256*48kHz / S/PDIF-BCLK=ACLK/3 / DAC-BCLK=ACLK/6 / DAC-A_ACLK=ACLK/1
// Fs is the audio sample frequency
// For the normal cases, (32, 44.1, and 48 kHz) select divider 0 through 4 and set
// sample frequency in PCM1723 accordingly
// For 96 kHz, select divider 5 or 6, and set PCM1723 to 48kHz*768 or *512 resp.
// Divider C through F are for 32 kHz sample frequency with a 48kHz*x ACLK
void AudioSetACLK(struct cvdv_cards *card, int select, int divider);
int AudioOpen(struct cvdv_cards *card);
int AudioClose(struct cvdv_cards *card);
// audiorate: 16, 32, 64, 22(.05), 44(.1), 88(.2), 24, 48, 96 kHz
// surround=0: Stereo
// surround=1: Surround
int AudioInit(struct cvdv_cards *card, int audiorate, int surround);
// returns size of the Video ES Buffer in bytes or 0=error
u32 DecoderGetAudioESSize(struct cvdv_cards *card);
// returns level of fullness in bytes
u32 DecoderGetAudioESLevel(struct cvdv_cards *card);
int DecoderKaraoke(struct cvdv_cards *card, int vocal1, int vocal2,
int melody);
#endif /* CVDV_AUDIO_H */
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